I unfortunately have not had very good luck with the Pfaff Grand quilter on the frame as it constantly jumps while doing a pattern or attempting to follow one. I do have a stitch regulator and I can do the machine quilting when it is not on the home frame. I would love to get some helpful tips as to what I am doing wrong. The thread frequently breaks although I have made some improvements with that but the quilting itself looks awful on both sides because at a critical moment, the machine seems to jump or have a bit of a startle reflex. It is so frustrating and disappointing to me. I do plan on continuing to try and master this skill but I have been at it for months and the improvement is so slight that I do not dare use it on a 'real' quilt and I am practicing repeatedly on plain white fabric. i would appreciate any help anyone has to offer-thanks-twinsister